Service And Maintenance - Ferroli GN4 N Instrucciones De Uso, Instalación Y Mantenimiento

GN4 N

3. SERVICE AND MAINTENANCE

All the adjustment, commissioning and maintenance operations must be performed by Qualified Personnel, in compliance
with the standards in force.
FERROLI S.p.A. declines all liability for damage to persons and/or things deriving from the tampering with the appliance by
unqualified or unauthorised persons.
Before performing any cleaning or maintenance operations, disconnect the appliance from the mains power supply using
the system switch and/or the special on-off devices.
3.1 Commissioning
Checks to be performed on first ignition, and after all maintenance operations that involve the disconnection of the appliance
from the systems or intervention on the safety devices or parts of the boiler:
Before first ignition
Before igniting the boiler for the first time, check that:
a the system is filled at the right pressure and any air has been correctly vented;
b there are no water or fuel leaks;
c the electrical power supply is correct;
d all the flues have been installed correctly and not too near to or across any flammable parts;
e there are no flammable substances near the appliance;
f the burner is suitably sized for the output of boiler;
g the water on-off valves are open.
First ignition
After having carried out the preliminary checks, the following ignition operations can be performed:
1 Open the fuel on-off valve.
2 Set the thermostat 4 (Fig. 1) to the desired value.
3 Close the switch upstream from the boiler and switch 5 (Fig. 1) on the control panel.
At this stage, the burner will be ignited and the boiler will start operation.
After first ignition
After first ignition, check that:
1 The door of the burner and smokebox are well sealed.
2 The burner is working correctly. This check should be performed using the required instruments, following the manufac-
turer's instructions.
3 The thermostats are working correctly.
4 Water is circulating in the system.
5 The flue gas is completely expelled through the flue.
3.2 Adjustments
Adjusting the burner
The efficiency and correct operation of the boiler depend above all on accuracy of the adjustments made to the burner.
Carefully follow the instructions provided by the manufacturer. Two-stage burners must have the first stage adjusted to an
output that is no lower than the minimum rated output of the boiler. The output of the second stage must not be greater
than the maximum rated output of the boiler.
3.3 Shut-down
For brief periods of inactivity, simply use switch 5 (Fig. 1) on the control panel.
For extended periods of inactivity, as well as operating switch 5, the fuel on-off valve must also be closed.
3.4 Maintenance
To ensure the maximum reliability of the heating system and minimum running costs, the boiler must be cleaned regularly,
at least once a year. These maintenance operations must be performed by qualified and specialist personnel.
Cleaning the boiler
1 Disconnect the power supply to the boiler
2 Remove the upper and lower front panel.
3 Open the door by unscrewing the knobs.
4 Clean the inside of the boiler and the entire flue gas discharge path, using a brush or compressed air.
5 Close the door again, and fasten it using the knob.
To clean the burner, refer to the instructions provided by the manufacturer.
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Cod. 3541A511 - Rev. 01 - 03/2015